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3 years ago

How can algebra help me with monthly finances and bill payments?

1 answer:

4 0

Personally, I don't see how algebra could help. Algebra is an advance form of mathematics. For monthly finances, you would need to do the following:
1. Figure out your how much you make monthly ( I would round to the nearest 5)
2. Decide what needs to be paid (i.e. bills, groceries, etc)
3. Figure in luxury expenses ( going to the movies, dates, etc.) and then just figure out what costs you can cut to leave you with enough money to live on. No complicated equations needed

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-2(9 + 3n) - 9 (1 - 10n)*

GuDViN [60]

Answer:

-27+84n

Step-by-step explanation:

4 0

3 years ago

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US average math SAT scores follow a normal distribution with a mean of 505 and a standard deviation of 112. A sample of 64 enter

Hitman42 [59]

Answer:

The claim that the scores of UT students are less than the US average is wrong

Step-by-step explanation:

Given : Sample size = 64

Standard deviation = 112

Mean = 505

Average score = 477

To Find : Test the claim that the scores of UT students are less than the US average at the 0.05 level of significance.

Solution:

Sample size = 64

n > 30

So we will use z test

$H_0:\mu \geq 477\\H_a:\mu < 477$

Formula : $z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

$z=\frac{505-477}{\frac{112}{\sqrt{64}}}$

$z=2$

Refer the z table for p value

p value = 0.9772

α=0.05

p value > α

So, we accept the null hypothesis

Hence The claim that the scores of UT students are less than the US average is wrong

3 0

3 years ago

-5y+8x=-18 5y+2x=58 Solve for x and y

xxMikexx [17]

Answer:

in -5y+8x=-18 and 5y+2x=58

x = 4

in -5y+8x=-18 and 5y+2x=58

y = 10

7 0

3 years ago

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A circle has a radius of 12 inches. Find the length of the arc intercepted by a central angle of 120 degrees to the nearest tent

OlgaM077 [116]

Answer:

25.12 inches

Step-by-step explanation:

We have given the radius of the circle =12 inches

The central angle intercepted by the arc =120°

We have to find the length of the arc

So length of the arc is given by $2\pi \times r\times \frac{central\ angle}{360}$

$=\frac{2\times \pi \times 12\times 120}{360}=25.12inches$

So the length of the arc will be 25.12 inch

3 0

3 years ago

Given that 5 x − 3 y = 32 Find y when x = 4

ollegr [7]

Answer:

Solution,

X=4

Now,

 $5x - 3y = 32 \\ or \: 5 \times x - 3y = 32 \\ or \: 5 \times 4 - 3y = 32 \\ or \: 20 - 3y = 32 \\ or \: - 3y = 32 - 20 \\ or \: - 3y = 12 \\ or \: y = - \frac{12}{ 3} \\ y = - 4$ 

Hope this helps...

Good luck on your assignment..

4 0

3 years ago

Read 2 more answers